42657346 has 4 divisors (see below), whose sum is σ = 63986022. Its totient is φ = 21328672.

The previous prime is 42657323. The next prime is 42657379. The reversal of 42657346 is 64375624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37344321 + 5313025 = 6111^2 + 2305^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10664335 + ... + 10664338.

Almost surely, 2^42657346 is an apocalyptic number.

42657346 is a deficient number, since it is larger than the sum of its proper divisors (21328676).

42657346 is a wasteful number, since it uses less digits than its factorization.

42657346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21328675.

The product of its digits is 120960, while the sum is 37.

The square root of 42657346 is about 6531.2591435343. The cubic root of 42657346 is about 349.4067391905.

It can be divided in two parts, 4265 and 7346, that added together give a palindrome (11611).

The spelling of 42657346 in words is "forty-two million, six hundred fifty-seven thousand, three hundred forty-six".